Connection for electric conductors.



J. H. LOCKWOOD.

CONNECTION FOR ELECTRIC CONDUCTORS.

APPLICATION FILED JAN. 29. I917.

Patented Jail.1,191s.

. u u l I y inmmwgh 1 5mm? v WITNESS INVENTOR W W H Xmww b ATTORN EYS JAMES H. LOCKWOOD, OF BRIDGEPORT, CONNECTICUT.

CONNECTION FOR ELECTRIC CONDUCTOBSV Speciflcation of Letters Patent.

Patented Jan. 1, 1918.

Application filed January 29, 1917. -Serial N 0. 145,066.

To all whom it may concern.-

Be it known that I, JAMES H. LocKwooD, a citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented an Improvement in Connections for Electric Conductors, of which the following is a specification.

This invention relates to connectors for Wires and cables, with more particular reference to devices for coupling the meeting ends of electric conductors, such as telegraph, telephone, electric light and power wires. The invention has for its principal object the provision of a connecting or .coupling device which is simple in construction, easily manipulated in. coupling and uncoupling the wire terminals, and thoroughly dependable in use not only for the purpose of securely gripping the wire ends and holding the same against accidental disengagement, but also for the purpose of minimizing electrical resistance and insuring an unbroken circuit and an uninterrupted flow of current of substantially the same intensity from one to another of the line segments.

My invention will be more readily understood by reference to the accompanying drawings, forming a part of this specification, in which Figure 1. is a side view of a connection for electric conductors embodying my invention, with the parts thereof assembled;

Fig. 2 is a similar view with the parts separated;

Fig. 3 is a central longitudinal section of the device as shown in Fig. 1;

Fig. 4 is a fragmentary perspective view of one end of the device with the parts separated;

Fig. 5 is a fragmentary longitudinal section showing the manner in which the wire is offset in the gripping or engaging operations, and

Fig. 6 is a plan view of a preferred form of the device when designed to be employed asla connection for more than two termina s.

Referring now to the drawings in detail, numerals 7 and 8' refer to wires the ends of which are desired to be electrically connected to each other, which wires I have shown as provided with the usual insulation 9 and 10, respectively.

practlcal and convenient connecting or coupling device embodying my invention bore 14 and the end of the rod-11,

comprises a cylindrical rod 11 screw-threaded at each end for the reception of the heads 12 and 13 which are provided with internally and correspondingly threaded bores 14 and 15, respectively, said bores preferably extending a little more than half the distance through said heads. Eccentrically disposed in one end of the rod 11 is a bore 16 and similarly disposed in the other end of said rod is the bore 17 which is preferably oppositely located with respect to the bore 16, these bores being of suitable diameter to receive the ends of the wires which 1t is desired to connect. The head 14 is provided with a bore 18 and the head -15;With

a similar bore 19, these bores being of substantially the same diameter as the bores 16 and 17, each extending through the" head from the outer face thereof to the larger threaded bore therein, and being so located as to register with the bore in the end of the rod 11 at a certain the head on said rod.

It will be apparent that the head 12 may be screwed upon the threaded end of the rod 11 to a relative position where the bore 18 in said head registers with the bore 16 in the end of said rod, whereupon the wire 7 may be passed through'the bore 18 and well into the bore 16. When this is done, the head 12 is further turned upon the rod 11, thereby offsetting the wire and firmly clamping the same between the end of the as clearly shown in 'Fig. 5. As the heads 12 and 13 are identical, as are the ends of the rod 11, the above description of the manner in which the end of the wire 7 is secured in the device will obviously apply to the manner in which the wire 10 is secured.

It will be noted that each of the heads 12 and 13 is of polygonal cross-sectionalconfiguration, whereby the same may be more firmly gripped by a suitable tool in turning the same on the rod 11 to offset and grip the wire.

On each of the threaded extremities of the rod 11 I provide a lock-nut 20 adapted point in the rotation of A rected as to rotate the head in a direction I sibility of dislodgment under any ordinary conditions, and that an electric connection is established.

InFig. 6 I have shown my device in the form of a cross 21 and adapted to connectfour wire ends or terminals, the connections in this case being precisely the same as in the simpler form of device just described and it will be apparent that the device 0 my invention may similarly be employed for the inter-connection of any other number of terminals.

I claim as new and desire to secure by Letters Patent:

l. A connection for electric conductors comprisinga body having threaded portions, correspondingly threaded members adapted to be screwed thereon, each of said body portions being provided with an eccentrically located bore and the member thereon having a passage through the same adapted to be brought into register with said bore, whereby a wire terminal may be passed through said passage and into said bore and engaged therein by turning said member on said body portion to offset the wire therebetween.

2. A connection for electric conductors comprising a rod having threaded extremities, correspondingly threaded heads adapted to be screwed thereon, each of the 'rod ends being provided with an eccentrically located longitudinal bore and the head tlereon having a bore through the same adapted to be brought into register with the bore in said rod, whereby a wire terminal may be passed through, the bore in said head and into the bore insaid rod and engaged therein by turning said head on said rod to ofiset the wire therebetween.

3; A connection for electric conductors comprising a rod having threaded extremities, correspondingly threaded heads adapted to be screwed thereon, each of the rod ends being provided with an eccentrically located longitudinal bore and the head thereon having a bore through the same adapted to be brought into register with the bore in said rod, whereby awire terminal may be passed through the bore in said head and into the bore insaid rod andengaged therein by turning said head on said rod to oflset the wire therebetween, and lock nuts on the threaded rod portions to engage and lock said heads against relative movement on said rod.

In testimony whereof I aflix my signature.

JAMES H. LOGKWOOD. 

